body, html
	line-height: 1
	font-weight: 200
	font-family: 'PingFang SC', 'STHeitiSC-Light', 'Helvetica-Light', 'arial', 'sans-serif'

.clearfix
	display: inline-block
	&:after
		display: block
		content: "."
		height: 0
		line-height: 0
		clear: both
		visibility: hidden

@media (-webkit-min-device-pixel-ratio: 1.5), (-min-device-pixel-ratio: 1.5)
	.border-1px
		&::after
			-webkit-transform: scaleY(0.7)
			transform: scaleY(0.7)
@media (-webkit-min-device-pixel-ratio: 2), (-min-device-pixel-ratio: 2)
	.border-1px
		&::after
			-webkit-transform: scaleY(0.5)
			transform: scaleY(0.5)
	